Mobile rack for vertically supporting rolls of paper



FIG. 1 is a perspective view of a mobile rack for vertically supporting rolls of paper embodying my new design;

FIG. 2 is an end elevational view thereof;

FIG. 3 is a side elevational view thereof it being understood that the broken lines are for illustrative purposes only;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a mobile rack for vertically supporting rolls of paper, as shown and described. 